Removing And Replacing Tier 1 Crus - Lenovo System x3250 M5 Installation And Service Manual

Removing and replacing Tier 1 CRUs

This section provides information for removing and replacing Tier 1 CRUs in the server.
Replacement of Tier 1 CRUs is your responsibility. If Lenovo installs a Tier 1 CRU at your request, you will
be charged for the installation.
The illustrations in this document might differ slightly from your hardware.
Removing a DIMM
Use this information to remove a memory module.
Read the safety information in "Safety" on page v and "Installation guidelines" on page 31.
If you are replacing a server component in the server, you need to slide the server out from the rack
enclosure, turn off the server and peripheral devices, and disconnect the power cords and all external cables.
To remove a dual inline memory module (DIMM), complete the following steps.
Step 1. Remove the cover (see "Removing the cover" on page 157).
Step 2. Remove the air baffle if installed (see "Removing the air baffle" on page 159).
Step 3. Carefully open the retaining clips on each end of the DIMM connector and remove the DIMM.
Attention: To avoid breaking the retaining clips or damaging the DIMM connectors, handle the
clips gently.
Figure 95. DIMM removal
If you are instructed to return the server component or optional device, follow all packaging instructions,
and use any packaging materials for shipping that are supplied to you.
Memory module installation
The following notes describe the types of DIMMs that the server supports and other information that you
must consider when you install DIMMs.
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Chapter 6 Removing and replacing server components
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